Check-row corn-planter



(No Model.) I

W. L KELLAR. GHEGKROW CORN PLANT-ER.

No.'29'7,697. Patented Apr. 29,1884."

Zflzfness-es m/entov N. PETERS, HMO-WY. WW 0. C.

' UNrTEn STATES PATENT OFFICE.

WARNER L. KELLAR, OF LOVINGTOK ILLINOIS.

- CHECK-ROWCORN-PLANTE R. i

SPECIFICATION forming part of Letters Patent No. 297,697, dated April 29, 1884.

Application filed Nnvembrr 26,1883. (No model.)

trie and State of Illinois, have invented certain new and useful Improvements in Corn- Planters, of which the following is a specification sufficiently full, clear, and exact to enable any one skilled in the art to which it relates to construct and operate the same.

sions in the ground the position of the hills in the rows.

The general features of my device for operating the seed-drop may be briefly described as a series of pinions and shafts that receive continuous rotary motion from a planterwheel and impart intermittent reciprocating motion to the seed-slide by means of a spring-crank and connecting-rod.

The marking device consists ina pair of bent levers hinged to the planter-frame and operated by the motion of the seed-slides.

The specific points of my inventidn will be hereinafter set forth by reference to the accompanying drawings, in which Figure 1 is a plan of a corn-planter with the tongue and other parts not shown. Fig. 2 is a front elevation of the seed-boxes, showing the construction of the markers with relation thereto. Figs. 3 and 4 show details of the device used to operate the seed-slide of the planter.

Planter-wheel s is provided with a crown gear-wheel (not shown) that meshes with pinion 6. The bearing (1 of pinion e is tubular, and is adapted to move longitudinally on shaft k, with which it rotates. The tubular shaft (1 terminates in a groove .or collar, a", which forms side bearings for lever a, and permits the longitudinal position of said shaft to be adj ustcd by said lever. The motion of wheel sis conveyed to the seed-slide through pinion e, shaft k, pinions Zm, shaft n, crank o, and a suitable connecting-rod. The rotary motion of the gearing is converted into reciprocating motion in the seed-slide by means of crank o and the connecting-rod. The motion of the pinions andshafting is continuous rotary, but the motion of the crank is intermittent rotary. The crank is held in position on its shaft by means of a spring, 0, Fig. 4, and this spring permits the shaft to partially rotate when the crank is held rigid. The seed-slide is at all times held rigid during apart of each semirevolution of the gearing by means of a projection, m, and a rod, 1'. Rod i is attached to a lever, g, which lever is operated by a double cam, f, (see Fig. 3,) on shaft 7:. A spring, it,

holds rod t in contact with projection w, and,

the operation of the complete device is as follows: The seed-slide and crank being held rigid by rod 2', as shown,- the gearing continues to rotate until the pressure of cam f against lever g detaches rod z from the projection, then the accumulated tension of the spring 0, Fig. 4, of thecrank causes the seed-slide to operate quickly, thereby making a clean, accurate drop.

The above operation is repeated in revers ing the motion of the seed-slide, except that rod 1' engages the opposite side of projection 00, and the opposite end of cam f disengages rod 1'. Before coming in contact with lOdi the seed-slide moves sufficiently to raise the ends of the markers clear of the ground.

As has been intimated, pinion '0 may be disconnected from the teeth in wheel 8 by means of lever a, and while so disconnected the drop maybe hastened or retarded by means of loose mounted lever b and rigid ratchet c.

The marking device consists in levers 12 p,

whichare operated alternately by the motion of the seed-slide 1), one marker coming'in conthat form bearings for the rods that connect said slide with markers 12'.

0 in Fig. 4 shows a series of holes in crank 0, by means of which the stroke of the con- 5 necting-rod may be made longer or shorter.

The proportion of the pinion c to the gear in wheel 8 is such that hills will be dropped at the usual distances apart.

If the planter should get out of check while IO in operation, the imprints of the markers will at once develop the fact, and by throwing pinion 6 out of gear and operating the lever Z), either backward or forward, as the case demands, the defect may be readily corrected.

I 5 I am aware that bent arms have heretofore been used in co-operation with the seed-slide to mark the position of the hills in the rows;

) but in such cases the said arms have raised by the motion of the slide and permitted to 20 fall of their own weight. It is now ascertained that positive downward motion is necessary to insure satisfactory impressions in the ground.

I claim as new and desire to secure by Letters Patent- 1. The combination, in a corn-planter, of a spring-crank adapted to convert continuous rotary motion from the planter-wheel into reciprocating motion in the seed-slide, and a catch adapted to hold the seed-slide rigid during a partial revolution of said crank, and to release the same by motion from the planterwheel at the proper time for operating the drop, as set forth.

2. The combination, in a check-row eornplanter, of wheel 3, gearing e d 70 Z m, springcrank 0, and seed-slide as and for the purpose set forth.

W'ARNER L. KELLAR.

Attest:

OSCAR DERBY, AARON E. Hormomzncn. 

